Shackle



FIG. 1 is a front view of the shackle when closed in accordance with the design;

FIG. 2 is a front view of the shackle when open in accordance with the design;

FIG. 3 is a front right perspective view of the shackle when closed in accordance with the design;

FIG. 4 is a front right perspective view of the shackle when open in accordance with the design;

FIG. 5 is a top view of the shackle when closed in accordance with the design;

FIG. 6 is a top view of the shackle when open in accordance with the design;

FIG. 7 is a right side view of the shackle when open in accordance with the design;

FIG. 8 is a right side view of the shackle when closed in accordance with the design;

FIG. 9 is a front-cross-section view taken along lines 9-9 of FIG. 6 of the shackle when open in accordance the design;

FIG. 10 is a front-cross-section view taken along lines 10-10 of FIG. 5 of the shackle when closed in accordance the design;

FIG. 11 is a front right perspective cross-section view taken along lines 11-11 of FIG. 4 of the shackle when open in accordance with the design;

FIG. 12 is a front right perspective cross-section view taken along lines 12-12 of FIG. 3 of the shackle when closed in accordance with the design;

FIG. 13 is a side view of the pin of the shackle when open in accordance with the design;

FIG. 14 is a top view of the pin of the shackle when open in accordance with the design; and,

FIG. 15 is a front right perspective view of the pin of the shackle when open in accordance with the design.

Right side views are presented. It is noted that in an embedment, left side views are mirror images of the right side. The coiled portion extends as would be understood in a symmetric manner about the left side to reach the corresponding portions of the right side shown. 

CLAIM The ornamental design for a shackle, as shown and described. 